Which one of the following is not redox reaction
Correct answer: D. 2Mg + O2→2MgO
- A. Mg + 2HCI→ MgCI + H2
- B. MgO + 2HCI→ MgCI2+ H2O
- C. Cu +4HNO3→ Cu(NO3)2+2H2O+2NO3
- D. 2Mg + O2→2MgO
Explanation
Both Mg and O already have fixed oxidation states (0) and combine to form MgO without any change in oxidation states.Not a redox reaction.
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Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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